A person who is indifferent or apathetic.
Indicating or reflecting a lack of concern or care.
Ambivalent; unconcerned; uninterested, apathetic.
Having no preference.
Mediocre (usually used negatively in modern usage).
Not making a difference; without significance or importance.
Being in the state of neutral equilibrium.
A person whose abilities are less than normal.
That part of the axis of a curved line which is intercepted between the ordinate and the normal.
denormal
Less than normal.